/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package econutri.servicos.usuario;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import lomtools.persistence.GenericDAO;

/**
 *
 * @author leoomoreira
 */
public class RemoverUsuarioXMLServlet extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("application/xml;charset=ISO-8859-1");
        String removerCodigo = (request.getParameter("removerCodigo") == null || request.getParameter("removerCodigo").trim().length() == 0 ? "-1" : request.getParameter("removerCodigo"));
        String codigo = (request.getParameter("codigo") == null || request.getParameter("codigo").trim().length() == 0 ? "-1" : request.getParameter("codigo"));
        String nome = (request.getParameter("nome") == null || request.getParameter("nome").trim().length() == 0 ? "%" : "%" + request.getParameter("nome") + "%");
        String xml = "";
        xml += "<result>";
        try {
            GenericDAO dao = new GenericDAO();
            if (removerCodigo.equalsIgnoreCase("-1")) {
                throw new SQLException();
            }
            String sql = "DELETE FROM usuario WHERE codigo = " + removerCodigo;
            int result = dao.delete(sql);
            if (result > 0) {
                xml += "<acao>Sucesso</acao>";
            }
            else {
                xml += "<acao>Fracasso</acao>";
            }
            dao.close();
        } catch (SQLException ex) {
            xml += "<acao>Fracasso</acao>";
        }
        try {
            GenericDAO dao = new GenericDAO();
            String sql = "" +
                "SELECT a.codigo, a.nome, a.sexo " +
                "FROM usuario a " +
                "WHERE (a.codigo = " + codigo + ") OR (" + codigo + " = -1) " +
                "AND a.nome LIKE '" + nome.toUpperCase() + "' " +
                "ORDER BY a.nome ASC";
            ResultSet rs = dao.executeQuery(sql);
            while (rs != null && rs.next()) {
                xml += "<item>";
                    xml += "<codigo>" + rs.getInt("codigo") + "</codigo>";
                    xml += "<nome>" + rs.getString("nome") + "</nome>";
                xml += "</item>";
            }
            dao.close();
        } catch (SQLException ex) {

        }
        xml += "</result>";
        PrintWriter out = response.getWriter();
        try {
            out.println(xml);
        } finally {
            out.close();
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
